发明名称 |
Integrated capacitor transimpedance amplifier |
摘要 |
Spectrometers including integrated capacitive detectors are described. An integrated capacitive detector integrates ion current from the collector (220) into a changing voltage. The detector includes a collector configured to receive ions in the spectrometer, a dielectric (228), and a plate (232) arranged in an overlapping configuration with collector on an opposite side of the dielectric. The detector also includes an amplifier (226). |
申请公布号 |
US9324546(B2) |
申请公布日期 |
2016.04.26 |
申请号 |
US201314400639 |
申请日期 |
2013.05.31 |
申请人 |
Smiths Detection-Watford Limited |
发明人 |
Fitzgerald John Patrick |
分类号 |
H01J49/02;G01N27/62 |
主分类号 |
H01J49/02 |
代理机构 |
Advent, LLP |
代理人 |
Advent, LLP |
主权项 |
1. A spectrometer comprising:
a detector including: a collector having a first side and a second side, the first side being configured to detect ions that drifted toward the collector; a dielectric element proximate the second side; an amplifier having an input and an output; and a capacitive plate element proximate the dielectric element and opposite the collector, the capacitive plate element being coupled with the output of the amplifier. |
地址 |
Watford GB |